'\" et
.TH pwd.h "0P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
.\"
.SH PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
.\"
.SH NAME
pwd.h
\(em password structure
.SH SYNOPSIS
.LP
.nf
#include <pwd.h>
.fi
.SH DESCRIPTION
The
.IR <pwd.h> 
header shall define the
.BR "struct passwd" ,
structure, which shall include at least the following members:
.sp
.RS 4
.nf

char    *pw_name   \fRUser's login name.\fP
uid_t    pw_uid    \fRNumerical user ID.\fP
gid_t    pw_gid    \fRNumerical group ID.\fP
char    *pw_dir    \fRInitial working directory.\fP
char    *pw_shell  \fRProgram to use as shell.\fP
.fi
.P
.RE
.P
The
.IR <pwd.h> 
header shall define the
.BR gid_t ,
.BR uid_t ,
and
.BR size_t
types as described in
.IR <sys/types.h> .
.P
The following shall be declared as functions and may also be defined as
macros. Function prototypes shall be provided.
.sp
.RS 4
.nf

void           endpwent(void);
struct passwd *getpwent(void);
struct passwd *getpwnam(const char *);
int            getpwnam_r(const char *, struct passwd *, char *,
                   size_t, struct passwd **);
struct passwd *getpwuid(uid_t);
int            getpwuid_r(uid_t, struct passwd *, char *,
                   size_t, struct passwd **);
void           setpwent(void);
.fi
.P
.RE
.LP
.IR "The following sections are informative."
.SH "APPLICATION USAGE"
None.
.SH RATIONALE
None.
.SH "FUTURE DIRECTIONS"
None.
.SH "SEE ALSO"
.IR "\fB<sys_types.h>\fP"
.P
The System Interfaces volume of POSIX.1\(hy2017,
.IR "\fIendpwent\fR\^(\|)",
.IR "\fIgetpwnam\fR\^(\|)",
.IR "\fIgetpwuid\fR\^(\|)"
.\"
.SH COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1-2017, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, 2018 Edition,
Copyright (C) 2018 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
In the event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at
http://www.opengroup.org/unix/online.html .
.PP
Any typographical or formatting errors that appear
in this page are most likely
to have been introduced during the conversion of the source files to
man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
